I am ordering my N from a local dealer. However, I don't like the wheels that come on the performance edition. I wanted to buy aftermarket wheels, and keep the nice Pirelli tires that come with it. My problem is that I can't find any 19" wheels that I like. Every wheel that I like comes in 18" and 20", but not 19". What are your thoughts about going to an 18" or 20" rim with this car?